/* Cascade Guide — help center (independent visual system) */

.page-help-cascade {
  --cg-ink: #0F172A;
  --cg-muted: #64748B;
  --cg-sky: #EAF4FF;
  --cg-panel: #FFFFFF;
  --cg-line: rgba(15, 23, 42, 0.1);
  --cg-blue: #2563EB;
  --cg-blue-deep: #1D4ED8;
  --cg-rose: #E11D48;
  --cg-gold: #D97706;
  --cg-lime: #059669;
  --cg-shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
  --cg-display: 'Newsreader', Georgia, serif;
  --cg-body: 'Lexend', system-ui, sans-serif;
  background:
    radial-gradient(900px 480px at 10% -10%, rgba(37, 99, 235, 0.14), transparent 55%),
    radial-gradient(700px 420px at 100% 0%, rgba(225, 29, 72, 0.08), transparent 50%),
    linear-gradient(180deg, #E3F0FF 0%, var(--cg-sky) 40%, #F5F8FC 100%) !important;
  padding-right: var(--a75-beam-w, 4.75rem);
  font-family: var(--cg-body);
  color: var(--cg-ink);
}

.cg-shell {
  position: relative;
  padding: 1.25rem 0 3.5rem;
  overflow: clip;
}

.cg-sky {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.cg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(36px);
  opacity: 0.55;
  animation: cgDrift 12s ease-in-out infinite;
}
.cg-orb--a {
  width: 280px; height: 280px; top: 40px; left: 8%;
  background: rgba(37, 99, 235, 0.28);
}
.cg-orb--b {
  width: 220px; height: 220px; top: 180px; right: 12%;
  background: rgba(225, 29, 72, 0.18);
  animation-delay: -4s;
}
.cg-orb--c {
  width: 180px; height: 180px; top: 420px; left: 42%;
  background: rgba(5, 150, 105, 0.16);
  animation-delay: -7s;
}
@keyframes cgDrift {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(22px) scale(1.06); }
}

.cg-wrap {
  position: relative;
  z-index: 1;
  width: min(920px, calc(100% - 1.5rem));
  margin: 0 auto;
}

.cg-hero {
  text-align: center;
  padding: 0.5rem 0 1.25rem;
}
.cg-kicker {
  margin: 0 0 0.45rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cg-blue-deep);
  font-weight: 700;
}
.cg-hero h1 {
  margin: 0 0 0.55rem;
  font-family: var(--cg-display);
  font-size: clamp(2.2rem, 5.5vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
}
.cg-hero h1 em {
  font-style: italic;
  color: var(--cg-blue);
}
.cg-lede {
  margin: 0 auto 1.35rem;
  max-width: 46ch;
  color: var(--cg-muted);
  font-size: 1.02rem;
}

/* Search lens */
.cg-lens {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0.45rem;
  max-width: 560px;
  margin: 0 auto;
  padding: 0.55rem 0.55rem 0.55rem 1.1rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.86);
  border: 1px solid rgba(255,255,255,0.95);
  box-shadow: var(--cg-shadow);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.cg-lens.is-focus {
  transform: translateY(-2px);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.14), var(--cg-shadow);
}
.cg-lens-ring {
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  pointer-events: none;
  background: conic-gradient(from 180deg, rgba(37,99,235,0.35), transparent 35%, rgba(225,29,72,0.25), transparent 70%, rgba(37,99,235,0.35));
  opacity: 0;
  transition: opacity 0.25s ease;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  padding: 1px;
}
.cg-lens.is-focus .cg-lens-ring { opacity: 1; animation: cgSpin 4s linear infinite; }
@keyframes cgSpin { to { transform: rotate(360deg); } }

.cg-lens input {
  border: 0;
  background: transparent;
  outline: none;
  font: inherit;
  font-size: 0.98rem;
  color: var(--cg-ink);
  min-width: 0;
  width: 100%;
}
.cg-lens-clear {
  border: 0;
  background: #EEF2FF;
  color: var(--cg-blue-deep);
  font: inherit;
  font-weight: 700;
  font-size: 0.78rem;
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  cursor: pointer;
}
.cg-lens-count {
  position: absolute;
  right: 1rem;
  bottom: -1.55rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--cg-blue-deep);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.cg-lens-count.is-on {
  opacity: 1;
  transform: none;
}

/* Topic constellation chips */
.cg-constellation {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
  margin: 2rem 0 1.25rem;
}
.cg-chip {
  appearance: none;
  border: 1px solid var(--cg-line);
  background: rgba(255,255,255,0.78);
  color: var(--cg-muted);
  font: inherit;
  font-weight: 600;
  font-size: 0.86rem;
  padding: 0.6rem 0.95rem;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.04);
  transition: transform 0.22s cubic-bezier(.2,.8,.2,1), background 0.22s ease, color 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
  animation: cgChipIn 0.45s ease both;
  animation-delay: calc(var(--i, 0) * 0.05s);
}
@keyframes cgChipIn {
  from { opacity: 0; transform: translateY(10px) scale(0.96); }
  to { opacity: 1; transform: none; }
}
.cg-chip:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.08);
}
.cg-chip-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.45;
}
.cg-chip.is-active {
  color: #fff;
  border-color: transparent;
  background: var(--cg-blue);
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.28);
}
.cg-chip.is-active .cg-chip-dot {
  opacity: 1;
  background: #fff;
  box-shadow: 0 0 0 3px rgba(255,255,255,0.25);
}
.cg-chip--sky.is-active { background: linear-gradient(120deg, #2563EB, #1D4ED8); }
.cg-chip--rose.is-active { background: linear-gradient(120deg, #E11D48, #BE123C); }
.cg-chip--gold.is-active { background: linear-gradient(120deg, #D97706, #B45309); }
.cg-chip--lime.is-active { background: linear-gradient(120deg, #059669, #047857); }

.cg-empty {
  text-align: center;
  padding: 1.5rem;
  border-radius: 18px;
  background: rgba(255,255,255,0.7);
  border: 1px dashed var(--cg-line);
  color: var(--cg-muted);
  margin-bottom: 1rem;
}

/* Cascade topics + FAQ */
.cg-cascade {
  display: grid;
  gap: 1rem;
}
.cg-topic {
  border-radius: 28px;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(255,255,255,0.9);
  box-shadow: var(--cg-shadow);
  backdrop-filter: blur(14px);
  overflow: hidden;
  animation: cgTopicIn 0.45s ease both;
}
@keyframes cgTopicIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}
.cg-topic[data-tone="sky"] { --cg-accent: #2563EB; }
.cg-topic[data-tone="rose"] { --cg-accent: #E11D48; }
.cg-topic[data-tone="gold"] { --cg-accent: #D97706; }
.cg-topic[data-tone="lime"] { --cg-accent: #059669; }

.cg-topic-head {
  padding: 1.15rem 1.25rem 0.35rem;
  border-top: 4px solid var(--cg-accent, var(--cg-blue));
}
.cg-topic-index {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  font-weight: 800;
  color: var(--cg-accent, var(--cg-blue));
  margin-bottom: 0.25rem;
}
.cg-topic-head h2 {
  margin: 0 0 0.25rem;
  font-family: var(--cg-display);
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}
.cg-topic-head p {
  margin: 0;
  color: var(--cg-muted);
  font-size: 0.92rem;
}

.cg-faq-stack {
  padding: 0.65rem 0.85rem 0.95rem;
  display: grid;
  gap: 0.45rem;
}
.cg-faq {
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--cg-line);
  overflow: hidden;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
  animation: cgFaqIn 0.4s ease both;
  animation-delay: calc(var(--i, 0) * 0.04s);
}
@keyframes cgFaqIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
.cg-faq:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.06);
}
.cg-faq.is-open {
  border-color: color-mix(in srgb, var(--cg-accent, var(--cg-blue)) 45%, white);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--cg-accent, var(--cg-blue)) 12%, transparent);
}
.cg-faq-q {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.75rem;
  align-items: center;
  text-align: left;
  border: 0;
  background: transparent;
  padding: 0.95rem 1rem;
  font: inherit;
  cursor: pointer;
  color: var(--cg-ink);
}
.cg-faq-num {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--cg-accent, var(--cg-blue));
}
.cg-faq-text {
  font-weight: 600;
  font-size: 0.96rem;
  line-height: 1.35;
}
.cg-faq-plus {
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 50%;
  background: #EEF2FF;
  position: relative;
  transition: transform 0.25s ease, background 0.25s ease;
}
.cg-faq-plus i {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.7rem;
  height: 2px;
  background: var(--cg-blue-deep);
  transform: translate(-50%, -50%);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.cg-faq-plus i:last-child {
  transform: translate(-50%, -50%) rotate(90deg);
}
.cg-faq.is-open .cg-faq-plus {
  background: var(--cg-accent, var(--cg-blue));
  transform: rotate(180deg);
}
.cg-faq.is-open .cg-faq-plus i {
  background: #fff;
}
.cg-faq.is-open .cg-faq-plus i:last-child {
  opacity: 0;
}

.cg-faq-a {
  overflow: hidden;
}
.cg-faq-a-inner {
  padding: 0 1rem 1rem 3.1rem;
  color: var(--cg-muted);
  font-size: 0.94rem;
  line-height: 1.6;
  animation: cgAnswer 0.3s ease;
}
@keyframes cgAnswer {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}
.cg-faq-a-inner a {
  color: var(--cg-blue-deep);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Support raft */
.cg-raft {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: 1.2fr auto 1fr;
  gap: 1rem;
  align-items: center;
  padding: 1.25rem;
  border-radius: 28px;
  background: linear-gradient(135deg, #0F172A, #1E293B 55%, #172554);
  color: #fff;
  box-shadow: var(--cg-shadow);
}
.cg-raft h2 {
  margin: 0 0 0.3rem;
  font-family: var(--cg-display);
  font-size: 1.55rem;
  font-weight: 600;
}
.cg-raft p { margin: 0; color: rgba(255,255,255,0.72); font-size: 0.92rem; }
.cg-raft-mail {
  display: inline-block;
  margin-top: 0.55rem;
  color: #93C5FD !important;
  font-weight: 700;
  text-decoration: none !important;
}
.cg-raft-mail:hover { color: #fff !important; }
.cg-raft-meta { margin-top: 0.25rem !important; font-size: 0.85rem !important; }
.cg-raft-actions {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.cg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.1rem;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
  font-size: 0.88rem;
  text-decoration: none !important;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.cg-btn:hover { transform: translateY(-2px); }
.cg-btn--primary {
  background: #fff;
  color: #0F172A !important;
  box-shadow: 0 10px 24px rgba(0,0,0,0.18);
}
.cg-btn--ghost {
  background: rgba(255,255,255,0.08);
  color: #fff !important;
  border: 1px solid rgba(255,255,255,0.18);
}
.cg-raft-notes {
  display: grid;
  gap: 0.75rem;
}
.cg-raft-notes strong {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #93C5FD;
  margin-bottom: 0.2rem;
}
.cg-raft-notes span {
  color: rgba(255,255,255,0.72);
  font-size: 0.88rem;
}
.cg-raft-notes nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.cg-raft-notes a {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  color: #fff !important;
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: none !important;
}
.cg-raft-notes a:hover { background: rgba(255,255,255,0.16); }

@media (max-width: 900px) {
  .page-help-cascade { padding-right: 0; }
  .cg-raft {
    grid-template-columns: 1fr;
  }
  .cg-raft-actions { flex-direction: row; flex-wrap: wrap; }
}

@media (max-width: 560px) {
  .cg-faq-q { grid-template-columns: 1fr auto; }
  .cg-faq-num { display: none; }
  .cg-faq-a-inner { padding-left: 1rem; }
  .cg-lens { grid-template-columns: 1fr; }
  .cg-lens-clear { justify-self: end; }
}